Pocket-knife.



G. W. SODBRSTRAND.

. POCKET KNIFE.

APPLICATION FILED APR.18, 190s.

. 912 197 Patented Feb. 9, 1909.

2 SHEETSSHEET l.

awwewto'a 'mr: NORRIS FETERS ca, wAsnmcran, n. c.

G. w. SODBRSTRAND. POCKET KNIFE.

APPLICATION FILED APR. 13, 1908.

'9 1 2, 1 97 Patented Feb. 9, 1909.

2 SHEETS-SHEET 2 nwi-m Q/vi Mwooeo UNITED @IATE% GEORGE W. SODERSTRAND,OF BERTHOUD, COLORADO.

POCKE T-KNIFE Specification of Letters Patent.

Patented Feb. 9, 1909.

Application filed April 13, 1908. Serial No. 426,805.

To all whom it may concern:

Be it known that I, Gnonen W. Sonne- STRAND, a citizen of the UnitedStates, residing at Berthoud, in the county of Larimer and State ofColorado, have invented certain new and useful Improvements inPocket-Knives; and I do declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

My invention relates to knives, and par ticularly to pocket knives.

The object of the invention is to provide a device of this characterwhich'cannot be opened unless the operation is perfectly understood, andwhich when opened completely is locked in such position so that itcannot be closed unless the operation is known to the person.

A further object of the invention is to provide a knife of thischaracter which will resemble the ordinary knife, and which will be freefrom springs to hold the blade in open or closed position, and whichwill be especially adapted for hunters and trappers, although useful forordinary purposes.

Vith these and other objects in view, the invention consists of certainnovel features of construction, combination and arrangement of parts, aswill be more fully described and particularly pointed out in theappended claim.

In the accompanying drawings, Figure 1 is a side elevation of the knife,Fig. 2 is a similar view with the locking lever open, Fig. 3 is a sideelevation showing the locking lever open and one side of the handlecarried around in alinement with the blade, Fig. 4 is a similar viewshowing the blade open, Fig. 5 is a side elevation showing the bladelocked in open position and the locking lever closed, with parts brokenaway to indicate the pivotal connections of he locking lever and theblade, Fig. 6 is a transverse s ction on the line 66 of Fig. 1 on anenlarged scale, Fig. 7 is a transverse section on the line 77 of Fig. 1,Fig. 8 is a detail longitudinal section on the line 8-8 of Fig. 1,

and Fig. 9 is a detail perspective viev. of the parts arranged inseparated position.

Referring more especially to the drawings,

1 and 2 represent the side pieces of the knife which are preferablylined with a sheet of brass, or other non-rusting material.

4 represents the blade, which is pivoted between the sides 1 and 2 uponthe pivot bolt 5.

Formed in the brass plate 3 of the side 1 is an arc-shaped slot 6,having its ends on a line with a central line through the side andhaving its curved portion extending toward the back of the handle. Inopposition to the slot 6 is a slot 7, of'si'rnilar construction andhaving its curved portion extending forwardly from a central line drawnthrough the side 2. V] hen the sides are clenched together in alineinentthe slots are arranged in position to each other 011 opposite sides ofthe knife so that they form a complete circle with their endsover-lapping each other so as to be engaged by an eccentrically arrangedpivot pin 8, which extends through the blade 4 and has equal partsprojecting on either side thereof. One portion of the pin extends intothe slot 6 and the other portion of the pin extends into the slot 7.

In order to prevent the sides 1 and 2 from dividing upon the bolt 5 Iprovide a lock key 9, which is carried by the locking lever 10, pivotedat the lower end of the handle, and which is adapted to engage thekeyhole slot 11, formed in the brass plate 3 of the handle 1.

In order to disengage the handle 1 from its connection with the lockingkey it is necessary to turn the locking lever 10 outwardly and thenslightly lift the side 1 until it is free of the key 9. This frees theside 1 and allows it to turn upon the pivot bolt 5. The pin 8 travels inthe slot 6 until it reaches its end when the knife blade 4 is carriedaround with the side 1 until the opposite side of the pin 8 catches theupper limiting end of the slot 7. At this time the pin will be locatedbetween the upper end of the slot 7 and the upper end of the slot 6 sothat the blade is locked in distended position between the pivot bolt 5and the pin 8. The lever 10 is then drawn into position with its upperend in engagement with the recessed portion 12 formed upon the rear endof the blade 4.

When it is desired to close the knife the lever 10 is moved so as topermit disengagement of the slot 11 from the key 9 of the side 1 turnedin the reverse direction until it is parallel with the blade, thusbringing the pin in engagement with the lower end of the slot 6 so thatthe blade will move with the side 1 back to its normal position when itis locked be being engaged by the lowerdimiting end v of the slot 6 andthe lower limiting end of the slot 7. The locking lever is then thrownback in place and the knife has the appearance of an ordinarysingle-blade pocketknife.

From the foregoing description, taken in connection with theaccompanying draW- ings, the construction and operation of the inventionwill be readily understood without requiring a more extendedexplanation.

Various changes in the form, proportion and the minor details ofconstruction may be resorted to Without departing from the principle orsacrificing any of the advantages of this invention as defined in theappended claim.

Having thus described my invention, What I claim and desire to secure byLetters Patent is A; knife comprising a pair of sides pivotallyconnected together and having oppositely disposed arouate slots, a bladepivoted between the said sides, a pin carried by said blade adapted toWork in said slots, a locking lever carried by said sides, and meanscontrolled by said lever for locking the sides from pivotal movement.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

GEORGE W. SODERSTRAND.

Witnesses:

S. 0. Emma, R. C. VAN GALDEn.

